*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
--accent:#00d4ff;--accent2:#00ffea;--accent-warm:#d76b2b;--bg1:#0a0e27;--bg2:#0d1333;--bg3:#0a1628;
--panel-bg:rgba(0,20,40,0.85);--panel-border:rgba(0,212,255,0.25);--panel-glow:rgba(0,212,255,0.1);
--input-bg:rgba(0,20,40,0.9);--text:#fff;--text-dim:rgba(255,255,255,0.6);--text-muted:rgba(255,255,255,0.35);
--node-shape:#3a6bc5;--node-effect:#c5823a;--node-bool:#c53a8a;--node-output:#3ac565;--node-mod:#8a3ac5;
--danger:#ff6b6b;--topbar-h:42px;--toolbar-w:46px;--right-panel-w:280px;--bottom-panel-h:240px;
--m-toolbar-h:44px;--m-right-h:25vh;--m-bottom-h:35vh;
--font:'Nunito','Nunito',sans-serif;
}
/* ━━━━ LIGHT MODE ━━━━ */
[data-theme="light"]{
  --bg1:#fae7cd;--bg2:#f5dbb8;--bg3:#eedcbe;
  --panel-bg:rgba(245,219,184,0.92);--panel-border:rgba(180,140,90,0.35);--panel-glow:rgba(87,131,179,0.1);
  --input-bg:rgba(238,220,190,0.95);--text:#2a1f14;--text-dim:rgba(107,90,69,0.85);--text-muted:rgba(160,138,112,0.7);
  --accent:#5783b3;--accent2:#5783b3;
  --shadow:0 4px 20px rgba(120,80,40,0.15);
}
[data-theme="light"] ::-webkit-scrollbar-track{background:rgba(0,0,0,0.05)}
[data-theme="light"] ::-webkit-scrollbar-thumb{background:#d76b2b}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover{background:#b55a23}
[data-theme="light"] #startscreen{background:linear-gradient(180deg,#fae7cd,#f5dbb8 50%,#eedcbe)}
[data-theme="light"] #startscreen .logo-big{background:linear-gradient(90deg,#5783b3,#d76b2b,#5783b3);-webkit-background-clip:text;background-clip:text}
[data-theme="light"] #startscreen .subtitle{color:rgba(215,107,43,0.8)}
[data-theme="light"] #startscreen .start-input{background:var(--bg-light);border-color:var(--panel-border);color:var(--text)}
[data-theme="light"] .start-btn.secondary{border-color:rgba(215,107,43,0.4);color:#d76b2b}
[data-theme="light"] #topbar{background:linear-gradient(180deg,rgba(245,219,184,0.95),rgba(238,220,190,0.9));border-bottom-color:var(--panel-border)}
[data-theme="light"] #toolbar{background:linear-gradient(180deg,rgba(245,219,184,0.95),rgba(238,220,190,0.9));border-right-color:var(--panel-border)}
[data-theme="light"] #viewport{background:#eedcbe}
[data-theme="light"] #tool-tooltip{background:rgba(250,231,205,0.96);border-color:var(--panel-border);box-shadow:0 4px 20px rgba(120,80,40,0.2)}
[data-theme="light"] .landscape-hint{background:var(--bg-dark);color:var(--text);box-shadow:0 4px 24px rgba(120,80,40,0.25)}

html,body{width:100%;height:100%;overflow:hidden;background:var(--bg1);color:var(--text);font-family:var(--font);font-weight:600;font-size:13px;overscroll-behavior:none;-webkit-tap-highlight-color:transparent}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:rgba(255,255,255,0.05);border-radius:3px}
::-webkit-scrollbar-thumb{background:#f6c654;border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#d76b2b}

/* TOAST NOTIFICATIONS */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:10001;
padding:10px 20px;border-radius:8px;font-family:var(--font);font-size:12px;font-weight:700;
letter-spacing:0.5px;pointer-events:none;opacity:0;transition:opacity 0.3s;
max-width:90vw;text-align:center}
.toast.show{opacity:1}
.toast.error{background:rgba(255,107,107,0.9);color:#fff;border:1px solid rgba(255,107,107,0.5)}
.toast.success{background:rgba(58,197,101,0.9);color:#fff;border:1px solid rgba(58,197,101,0.5)}
.toast.warn{background:rgba(197,130,58,0.9);color:#fff;border:1px solid rgba(197,130,58,0.5)}

/* MARQUEE SELECTION */
#ng-marquee{position:absolute;z-index:3;pointer-events:none;display:none;
border:1px solid var(--accent);background:rgba(0,212,255,0.08);border-radius:2px}

/* LAYOUT - Desktop */
#app{display:grid;width:100%;height:100%;position:relative;
grid-template-columns:var(--toolbar-w) 1fr var(--right-panel-w);
grid-template-rows:var(--topbar-h) 1fr var(--bottom-panel-h);
grid-template-areas:"topbar topbar topbar" "toolbar viewport rightpanel" "toolbar nodegraph nodegraph"}

/* TOPBAR */
#topbar{grid-area:topbar;display:flex;align-items:center;gap:8px;padding:0 12px;
background:linear-gradient(180deg,rgba(0,20,40,0.95),rgba(0,30,60,0.85));border-bottom:1px solid var(--panel-border);z-index:100}
.dashboard-btn{
  display:inline-flex;align-items:center;gap:4px;text-decoration:none;
  font-family:var(--font);font-weight:700;font-size:11px;
  color:#fff;background:#d76b2b;padding:4px 12px;border-radius:5px;
  letter-spacing:0.5px;white-space:nowrap;transition:all 0.15s;flex-shrink:0;
}
.dashboard-btn:hover{background:#b55a23;box-shadow:0 0 12px rgba(215,107,43,0.3)}
#topbar .logo{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:800;letter-spacing:1.5px;
background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;white-space:nowrap}
#topbar .logo svg{width:20px;height:20px;flex-shrink:0}
#topbar .sep{width:1px;height:20px;background:var(--panel-border);flex-shrink:0}
#topbar .project-name{background:transparent;border:1px solid transparent;color:var(--text-dim);font-family:var(--font);font-size:12px;font-weight:600;padding:3px 8px;border-radius:4px;width:140px}
#topbar .project-name:focus{border-color:var(--panel-border);background:var(--input-bg);color:var(--text);outline:none}
.tb-btn{display:flex;align-items:center;justify-content:center;gap:4px;background:transparent;border:1px solid transparent;color:var(--text-dim);padding:4px 8px;border-radius:6px;cursor:pointer;font-family:var(--font);font-size:11px;font-weight:700;letter-spacing:0.5px;white-space:nowrap;transition:all 0.2s}
.tb-btn:hover{color:var(--accent);border-color:var(--panel-border);background:rgba(0,212,255,0.05)}
.tb-btn.active{color:var(--accent);border-color:rgba(0,212,255,0.4);background:rgba(0,212,255,0.1)}
.tb-btn svg{width:16px;height:16px}
.tb-spacer{flex:1}
.tb-group{display:flex;gap:2px;align-items:center}

/* LEFT TOOLBAR */
#toolbar{grid-area:toolbar;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;
background:linear-gradient(180deg,rgba(0,20,40,0.95),rgba(0,30,60,0.85));border-right:1px solid var(--panel-border);overflow-y:auto;overflow-x:hidden;z-index:90;touch-action:pan-y}
#toolbar::-webkit-scrollbar{width:0}
.tool-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid transparent;border-radius:8px;color:var(--text-dim);cursor:pointer;transition:all 0.2s;position:relative;flex-shrink:0}
.tool-btn:hover{color:var(--accent);background:rgba(0,212,255,0.08);border-color:var(--panel-border)}
.tool-btn.active{color:var(--accent);background:rgba(0,212,255,0.15);border-color:rgba(0,212,255,0.4);box-shadow:0 0 12px rgba(0,212,255,0.15)}
.tool-btn svg{width:20px;height:20px}
.tool-sep{width:28px;height:1px;background:var(--panel-border);margin:4px 0;flex-shrink:0}
/* Rich tooltip popup */
#tool-tooltip{position:fixed;z-index:9999;pointer-events:none;opacity:0;transition:opacity 0.18s;
background:rgba(6,14,30,0.96);border:1px solid var(--panel-border);border-radius:8px;padding:8px 12px;
box-shadow:0 4px 20px rgba(0,0,0,0.6),0 0 15px rgba(0,212,255,0.1);backdrop-filter:blur(12px);min-width:140px;max-width:220px}
#tool-tooltip.visible{opacity:1}
#tool-tooltip .tt-name{font-size:12px;font-weight:800;color:var(--accent);letter-spacing:0.5px;margin-bottom:2px}
#tool-tooltip .tt-shortcut{display:inline-block;font-size:10px;font-weight:700;color:var(--bg1);background:var(--accent);padding:1px 6px;border-radius:3px;margin-bottom:4px;letter-spacing:0.5px}
#tool-tooltip .tt-desc{font-size:10px;color:var(--text-dim);line-height:1.4;font-weight:600}
#tool-tooltip .tt-arrow{position:absolute;width:8px;height:8px;background:rgba(6,14,30,0.96);border-left:1px solid var(--panel-border);border-bottom:1px solid var(--panel-border);transform:rotate(45deg)}

/* VIEWPORT */
#viewport{grid-area:viewport;position:relative;overflow:hidden;background:#0a0e1a;touch-action:none}
#viewport canvas{display:block;width:100%!important;height:100%!important;touch-action:none}
#viewport-overlay{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:10}
.view-label{position:absolute;bottom:8px;left:8px;font-size:10px;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase}
.gizmo-mode-indicator{position:absolute;top:8px;left:8px;display:flex;gap:2px}
.gm-btn{padding:3px 8px;font-size:10px;font-weight:700;letter-spacing:0.5px;background:rgba(0,20,40,0.8);border:1px solid var(--panel-border);border-radius:4px;color:var(--text-dim);cursor:pointer;pointer-events:all;transition:all 0.2s}
.gm-btn:hover{color:var(--accent)}
.gm-btn.active{color:var(--accent);background:rgba(0,212,255,0.15);border-color:rgba(0,212,255,0.4)}

/* CAMERA FRAME OVERLAY */
#camera-frame{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:9;display:none}
#camera-frame .frame-mask{position:absolute;background:rgba(0,0,0,0.5)}
#camera-frame .frame-border{position:absolute;border:1px solid rgba(0,212,255,0.5)}
#camera-frame .frame-label{position:absolute;bottom:4px;right:4px;font-size:9px;color:var(--accent);opacity:0.7}

/* VIEW CUBE */
#viewcube{position:absolute;top:8px;right:8px;width:80px;height:80px;pointer-events:all;z-index:11;cursor:pointer}
#viewcube canvas{width:100%;height:100%;border-radius:8px;border:1px solid var(--panel-border);background:rgba(0,20,40,0.6)}

/* VIEWPORT BUTTONS */
.vp-btn{position:absolute;pointer-events:all;padding:4px 8px;font-size:10px;font-weight:700;background:rgba(0,20,40,0.8);border:1px solid var(--panel-border);border-radius:4px;color:var(--text-dim);cursor:pointer;font-family:var(--font);transition:all 0.2s}
.vp-btn:hover{color:var(--accent);border-color:rgba(0,212,255,0.4)}
.vp-btn.active{color:var(--accent);background:rgba(0,212,255,0.15)}
#btn-focus{right:8px;bottom:36px}
#btn-solo{right:8px;bottom:8px}

/* RIGHT PANEL */
#rightpanel{grid-area:rightpanel;background:linear-gradient(180deg,rgba(0,20,40,0.92),rgba(0,30,60,0.82));border-left:1px solid var(--panel-border);overflow-y:auto;overflow-x:hidden;z-index:80}
#rightpanel::-webkit-scrollbar{width:6px}
#rightpanel::-webkit-scrollbar-thumb{background:#f6c654;border-radius:3px}
.panel-section{border-bottom:1px solid var(--panel-border)}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;cursor:pointer;user-select:none;transition:background 0.2s}
.panel-header:hover{background:rgba(0,212,255,0.04)}
.panel-header .ph-title{font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--accent)}
.panel-header .ph-arrow{color:var(--accent);font-size:10px;transition:transform 0.2s}
.panel-header.collapsed .ph-arrow{transform:rotate(-90deg)}
/* Collapse buttons — blue double chevrons */
.collapse-btn{background:none;border:none;color:var(--accent);cursor:pointer;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:3px;padding:0;flex-shrink:0;transition:all 0.15s}
.collapse-btn:hover{background:rgba(0,212,255,0.1);color:#fff}
.collapse-btn svg{width:16px;height:16px}
.panel-body{padding:8px 14px 14px}
.panel-body.hidden{display:none}
.prop-row{display:flex;align-items:center;gap:6px;margin-bottom:8px}
.prop-label{font-size:10px;font-weight:700;letter-spacing:0.5px;color:var(--text-dim);min-width:28px;text-transform:uppercase}
.prop-input{flex:1;background:var(--input-bg);border:1px solid var(--panel-border);border-radius:5px;padding:4px 8px;color:var(--text);font-family:var(--font);font-size:12px;font-weight:600;outline:none;transition:border-color 0.2s}
.prop-input:focus{border-color:var(--accent);box-shadow:0 0 8px rgba(0,212,255,0.15)}
.prop-input[type="color"]{width:32px;height:26px;padding:2px;cursor:pointer}
.prop-input[type="range"]{-webkit-appearance:none;height:4px;border-radius:2px;border:none;padding:0;background:linear-gradient(90deg,rgba(0,212,255,0.3),rgba(0,212,255,0.1))}
.prop-input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--accent2);cursor:pointer;box-shadow:0 0 8px var(--accent)}
.prop-row-3{display:grid;grid-template-columns:28px 1fr 1fr 1fr;gap:4px;align-items:center;margin-bottom:6px}
.prop-row-3 .prop-label{grid-column:1}
.prop-row-3 .xyz-input{background:var(--input-bg);border:1px solid var(--panel-border);border-radius:4px;padding:3px 6px;color:var(--text);font-family:var(--font);font-size:11px;font-weight:600;outline:none;width:100%;text-align:center}
.prop-row-3 .xyz-input:focus{border-color:var(--accent)}
.xyz-tag{font-size:8px;font-weight:800;margin-right:2px}
.xyz-tag.x{color:#ff6b6b}.xyz-tag.y{color:#6bff6b}.xyz-tag.z{color:#6b6bff}

/* MOBILE TABS (property tabs for mobile) */
.prop-tabs{display:none}
.prop-tab-content{display:none}
.prop-tab-content.active{display:block}

/* NODE GRAPH */
#nodegraph{grid-area:nodegraph;position:relative;background:radial-gradient(ellipse at center,#0d1333,#080b20);border-top:1px solid var(--panel-border);overflow:hidden;z-index:70;touch-action:none}
#nodegraph-canvas{position:absolute;top:0;left:0;width:100%;height:100%;user-select:none;-webkit-user-select:none;touch-action:none}
.ng-controls{position:absolute;top:8px;right:8px;display:flex;gap:4px;z-index:10}
.ng-btn{padding:3px 8px;font-size:10px;font-weight:700;background:rgba(0,20,40,0.9);border:1px solid var(--panel-border);border-radius:4px;color:var(--text-dim);cursor:pointer;font-family:var(--font);transition:all 0.2s}
.ng-btn:hover{color:var(--accent);border-color:rgba(0,212,255,0.4)}
.ng-btn.active{color:var(--accent);background:rgba(0,212,255,0.15);border-color:rgba(0,212,255,0.4)}
.ng-add-btn{position:absolute;top:8px;left:8px;z-index:10;padding:4px 12px;font-size:11px;font-weight:700;background:linear-gradient(180deg,rgba(0,212,255,0.2),rgba(0,212,255,0.05));border:1px solid rgba(0,212,255,0.4);border-radius:6px;color:var(--accent);cursor:pointer;font-family:var(--font);transition:all 0.2s;letter-spacing:0.5px}
.ng-add-btn:hover{background:linear-gradient(180deg,rgba(0,212,255,0.35),rgba(0,212,255,0.1));box-shadow:0 0 15px rgba(0,212,255,0.2)}

/* Node cards */
.ng-node{position:absolute;min-width:160px;border-radius:10px;cursor:grab;background:linear-gradient(135deg,rgba(0,20,40,0.9),rgba(0,30,60,0.7));border:1px solid var(--panel-border);backdrop-filter:blur(10px);box-shadow:0 4px 20px rgba(0,0,0,0.3);user-select:none;transition:box-shadow 0.2s;z-index:1}
.ng-node:hover{box-shadow:0 4px 25px rgba(0,0,0,0.4),0 0 15px var(--panel-glow)}
.ng-node.selected{border-color:var(--accent);box-shadow:0 0 20px rgba(0,212,255,0.25)}
.ng-node-header{padding:8px 12px;border-radius:9px 9px 0 0;font-size:11px;font-weight:700;letter-spacing:0.5px;display:flex;align-items:center;gap:6px;border-bottom:1px solid rgba(255,255,255,0.08)}
.ng-node-body{padding:8px 12px}
.ng-node-field{display:flex;align-items:center;justify-content:space-between;gap:4px;margin-bottom:4px;font-size:10px;color:var(--text-dim)}
.ng-node-field span:last-child{color:var(--text);font-weight:700}

/* Sockets - bigger for touch */
.ng-socket{position:absolute;width:14px;height:14px;border-radius:50%;border:2px solid;cursor:crosshair;z-index:5;transition:transform 0.15s,box-shadow 0.15s}
.ng-socket::before{content:'';position:absolute;top:-15px;left:-15px;right:-15px;bottom:-15px;border-radius:50%}
.ng-socket:hover{transform:scale(1.4)}
.ng-socket.output{right:-7px;border-color:var(--accent);background:rgba(0,212,255,0.3)}
.ng-socket.output:hover{box-shadow:0 0 10px var(--accent)}
.ng-socket.input{left:-7px;border-color:var(--node-effect);background:rgba(197,130,58,0.3)}
.ng-socket.input:hover{box-shadow:0 0 10px var(--node-effect)}
.ng-socket.can-connect{transform:scale(1.5);box-shadow:0 0 12px currentColor}

/* Node type colors */
.ng-node.shape-node .ng-node-header{background:linear-gradient(135deg,rgba(58,107,197,0.4),rgba(58,107,197,0.15))}
.ng-node.effect-node .ng-node-header{background:linear-gradient(135deg,rgba(197,130,58,0.4),rgba(197,130,58,0.15))}
.ng-node.bool-node .ng-node-header{background:linear-gradient(135deg,rgba(197,58,138,0.4),rgba(197,58,138,0.15))}
.ng-node.texture-node .ng-node-header{background:linear-gradient(135deg,rgba(58,197,101,0.4),rgba(58,197,101,0.15))}
.ng-node.mod-node .ng-node-header{background:linear-gradient(135deg,rgba(138,58,197,0.4),rgba(138,58,197,0.15))}
.ng-node.effect-selected{border-color:var(--node-effect);box-shadow:0 0 20px rgba(197,130,58,0.25)}

/* Group container in node graph — stacked layout */
.ng-group{position:absolute;border-radius:10px;min-width:170px;z-index:2;
  background:rgba(20,20,24,0.7);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border:1.5px dashed rgba(0,212,255,0.35);box-shadow:0 0 16px rgba(0,212,255,0.08);
  cursor:default;user-select:none;touch-action:none;transition:border-color 0.2s,box-shadow 0.2s}
.ng-group:hover{border-color:rgba(0,212,255,0.55)}
.ng-group.snap-preview{border-color:var(--accent);background:rgba(0,212,255,0.08);
  box-shadow:0 0 20px rgba(0,212,255,0.15);animation:snap-pulse 0.8s ease-in-out infinite}
.ng-node.snap-target{border-color:var(--accent)!important;box-shadow:0 0 20px rgba(0,212,255,0.4),0 0 40px rgba(0,212,255,0.15)!important;animation:snap-pulse 0.8s ease-in-out infinite}
.ng-node.snap-source{border-color:var(--accent2)!important;box-shadow:0 0 15px rgba(0,255,234,0.3),0 0 30px rgba(0,255,234,0.1)!important}
@keyframes snap-pulse{0%,100%{opacity:1}50%{opacity:0.7}}
.ng-group-header{padding:8px 12px;display:flex;align-items:center;gap:8px;
  border-bottom:1px solid rgba(255,255,255,0.06);font-size:10px;font-weight:700;
  text-transform:uppercase;letter-spacing:0.8px;color:var(--accent);cursor:grab;pointer-events:auto}
.ng-group-header .group-icon{width:12px;height:12px;border-radius:3px;background:var(--accent);flex-shrink:0;opacity:0.7}
.ng-group-header .group-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ng-group-body{padding:6px;display:flex;flex-direction:column;gap:0}
.ng-group-child{padding:6px 10px;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.05);
  display:flex;align-items:center;gap:8px;cursor:pointer;transition:background 0.1s;position:relative;font-size:10px}
.ng-group-child:first-child{border-radius:4px 4px 0 0}
.ng-group-child:last-child{border-radius:0 0 4px 4px}
.ng-group-child:only-child{border-radius:4px}
.ng-group-child+.ng-group-child{border-top:none}
.ng-group-child:hover{background:rgba(255,255,255,0.06)}
.ng-group-child.selected{border-color:var(--accent);background:rgba(0,212,255,0.1)}
.ng-group-child .child-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.ng-group-child .child-name{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ng-group-child .child-type{font-size:9px;color:rgba(255,255,255,0.35)}
.ng-group .ng-socket{pointer-events:auto}

/* Connection lines */
.conn-hit{fill:none;stroke:transparent;stroke-width:16;cursor:pointer;pointer-events:stroke}
.conn-hit:hover+.conn-visible{stroke-opacity:1;stroke-width:3;stroke:var(--danger)}
.conn-visible{fill:none;stroke-width:2;pointer-events:none;transition:stroke-opacity 0.15s,stroke 0.15s}
.conn-dot{pointer-events:none}
.connection-preview{fill:none;stroke-width:2;stroke-dasharray:6 3;animation:dash 0.5s linear infinite;pointer-events:none}
@keyframes dash{to{stroke-dashoffset:-9}}
.conn-hit:hover~.conn-delete-hint{opacity:1}
.conn-delete-hint{opacity:0;transition:opacity 0.2s;pointer-events:none;fill:var(--danger);font-family:var(--font);font-size:10px;font-weight:700}

/* Resize dividers - positioned absolutely in #app */
.divider-h,.divider-v{position:absolute;z-index:100;background:transparent;touch-action:none}
.divider-h{height:8px;cursor:ns-resize;left:0;right:0}
.divider-v{width:8px;cursor:ew-resize;top:0;bottom:0}
.divider-h:hover,.divider-h.active,.divider-v:hover,.divider-v.active{background:rgba(0,212,255,0.3)}

/* Panel collapse system */
#rightpanel.collapsed,#nodegraph.collapsed,#toolbar.collapsed{overflow:hidden!important;opacity:0;pointer-events:none;min-width:0!important;min-height:0!important}
#rightpanel.expanding,#nodegraph.expanding,#toolbar.expanding{transition:opacity 0.25s ease}
.panel-tab{position:fixed;z-index:200;display:none;align-items:center;justify-content:center;gap:6px;
background:linear-gradient(135deg,rgba(6,14,30,0.96),rgba(0,30,60,0.92));border:1px solid var(--panel-border);
color:var(--accent);cursor:pointer;font-family:var(--font);font-size:10px;font-weight:700;letter-spacing:0.8px;text-transform:uppercase;
backdrop-filter:blur(12px);box-shadow:0 2px 15px rgba(0,0,0,0.4),0 0 10px rgba(0,212,255,0.08);transition:all 0.25s;user-select:none;-webkit-user-select:none}
.panel-tab:hover{background:rgba(0,212,255,0.12);box-shadow:0 2px 20px rgba(0,0,0,0.4),0 0 15px rgba(0,212,255,0.15);color:#fff}
.panel-tab.visible{display:flex;animation:tab-appear 0.3s ease}
@keyframes tab-appear{from{opacity:0;transform:translate(var(--tab-slide-x,0),var(--tab-slide-y,0))}to{opacity:1;transform:translate(0,0)}}
.panel-tab svg{width:14px;height:14px;flex-shrink:0}
.panel-tab.tab-right{right:0;top:50%;transform:translateY(-50%);writing-mode:vertical-rl;text-orientation:mixed;padding:14px 7px;border-radius:8px 0 0 8px;border-right:none;--tab-slide-x:20px}
.panel-tab.tab-bottom{bottom:0;left:50%;transform:translateX(-50%);padding:6px 18px;border-radius:8px 8px 0 0;border-bottom:none;--tab-slide-y:20px}
.panel-tab.tab-left{left:0;top:50%;transform:translateY(-50%);writing-mode:vertical-rl;text-orientation:mixed;padding:14px 7px;border-radius:0 8px 8px 0;border-left:none;--tab-slide-x:-20px}
.mobile-tab-bar{display:contents}

/* CONTEXT MENU */
.context-menu{position:fixed;z-index:9999;min-width:180px;max-height:70vh;overflow-y:auto;background:linear-gradient(135deg,rgba(0,20,40,0.97),rgba(0,30,60,0.95));border:1px solid var(--panel-border);border-radius:10px;backdrop-filter:blur(20px);box-shadow:0 8px 40px rgba(0,0,0,0.5);padding:6px 0;display:none}
.context-menu.show{display:block}
.cm-item{padding:8px 16px;font-size:12px;font-weight:600;color:var(--text-dim);cursor:pointer;display:flex;align-items:center;gap:8px;transition:all 0.15s}
.cm-item:hover{background:rgba(0,212,255,0.1);color:var(--accent)}
.cm-sep{height:1px;background:var(--panel-border);margin:4px 0}
.cm-header{padding:6px 16px;font-size:10px;font-weight:700;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase}

/* PRESETS MODAL */
#presets-modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;background:rgba(0,0,0,0.6);display:none;align-items:center;justify-content:center}
#presets-modal.show{display:flex}
.preset-card{padding:12px;border-radius:10px;background:var(--input-bg);border:1px solid var(--panel-border);cursor:pointer;text-align:center;font-size:11px;font-weight:700;color:var(--text-dim);transition:all 0.2s}
.preset-card:hover{border-color:var(--accent);color:var(--accent)}

/* LAYER STACK */
.layer-row{display:flex;align-items:center;gap:6px;padding:6px 12px;cursor:pointer;transition:background 0.1s;min-height:34px;border-left:3px solid transparent}
.layer-row:hover{background:rgba(0,212,255,0.05)}
.layer-row.selected{background:rgba(0,212,255,0.1);border-left-color:var(--accent)}
.layer-row.hidden-layer{opacity:0.4}
.layer-row.locked-layer{opacity:0.65}
.layer-name{flex:1;min-width:0;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.layer-swatch{width:12px;height:12px;border-radius:3px;flex-shrink:0;border:1px solid rgba(255,255,255,0.1)}
.layer-actions{display:flex;gap:1px;flex-shrink:0}
.layer-actions button{width:26px;height:26px;min-width:26px;border:none;background:transparent;color:var(--text-muted);border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.1s;padding:0}
.layer-actions button svg{width:13px;height:13px;pointer-events:none}
.layer-actions button:hover{background:rgba(255,255,255,0.08);color:var(--text)}
.layer-actions button.active{color:var(--accent)}
.layer-actions button.off{color:var(--text-muted);opacity:0.35}
.layer-group-header{display:flex;align-items:center;gap:6px;padding:6px 12px;cursor:pointer;min-height:34px;background:rgba(0,212,255,0.04);border-left:3px solid rgba(0,212,255,0.3);transition:background 0.1s}
.layer-group-header:hover{background:rgba(0,212,255,0.08)}
.layer-group-header .group-name{flex:1;font-size:11px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.layer-group-children{border-left:1px solid var(--panel-border);margin-left:18px}
.layer-group-children .layer-row{padding-left:8px}

/* START SCREEN */
#startscreen{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;background:linear-gradient(180deg,#0a0e27,#0d1333 50%,#0a1628);display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity 0.5s}
#startscreen.hiding{opacity:0;pointer-events:none}
#startscreen .logo-big{font-size:48px;font-weight:800;letter-spacing:3px;background:linear-gradient(90deg,var(--accent),#d76b2b,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}
#startscreen .subtitle{font-size:14px;color:rgba(215,107,43,0.6);letter-spacing:4px;text-transform:uppercase;margin-bottom:40px}
#startscreen .start-input{background:#222228;border:1px solid rgba(255,255,255,0.12);border-radius:10px;padding:12px 20px;color:#e0e0e6;font-family:var(--font);font-size:15px;font-weight:600;width:100%;max-width:380px;text-align:center;outline:none;margin-bottom:20px;-webkit-appearance:none}
#startscreen .start-input::placeholder{color:#8888a0;opacity:0.6}
#startscreen .start-input:focus{border-color:#d76b2b;box-shadow:0 0 20px rgba(215,107,43,0.15)}
.start-btns{display:flex;gap:12px}
.start-btn{padding:12px 28px;border-radius:10px;font-family:var(--font);font-size:14px;font-weight:700;letter-spacing:1px;text-transform:uppercase;cursor:pointer;transition:all 0.3s;border:1px solid}
.start-btn.primary{background:linear-gradient(135deg,#d76b2b,#f6c654);border-color:#d76b2b;color:#1c1c1c}
.start-btn.primary:hover{box-shadow:0 0 30px rgba(215,107,43,0.4);transform:translateY(-2px)}
.start-btn.secondary{background:transparent;border-color:rgba(215,107,43,0.3);color:rgba(215,107,43,0.7)}
.start-btn.secondary:hover{border-color:#d76b2b;color:#d76b2b}
.start-glow{display:none}

/* MOBILE */
@media(max-width:768px){
#app{grid-template-columns:1fr;grid-template-rows:var(--topbar-h) 1fr var(--m-toolbar-h) var(--m-right-h) var(--m-bottom-h);
grid-template-areas:"topbar" "viewport" "toolbar" "rightpanel" "nodegraph"}
#topbar{padding:0 6px;gap:4px;overflow-x:auto}
#topbar .logo{font-size:12px;letter-spacing:1px}
#topbar .logo svg{width:16px;height:16px}
#topbar .project-name{width:80px;min-width:60px;font-size:11px;padding:2px 6px}
#topbar .sep{margin:0 2px}
.tb-btn{padding:3px 6px;font-size:10px}
.tb-btn svg{width:14px;height:14px}
#toolbar{flex-direction:row;border-right:none;border-bottom:1px solid var(--panel-border);border-top:1px solid var(--panel-border);padding:0 6px;overflow-x:auto;justify-content:flex-start;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;touch-action:pan-x}
.tool-btn{width:40px;height:40px;min-width:40px;flex-shrink:0}
.tool-sep{width:1px;height:24px;margin:0 4px;min-width:1px;flex-shrink:0}
#rightpanel{border-left:none;border-top:1px solid var(--panel-border);overflow-y:auto;-webkit-overflow-scrolling:touch}
.prop-tabs{display:flex;gap:4px;padding:6px 10px;overflow-x:auto;border-bottom:1px solid var(--panel-border);background:rgba(0,20,40,0.9);-webkit-overflow-scrolling:touch}
.prop-tab-btn{padding:6px 14px;font-size:11px;font-weight:700;letter-spacing:0.5px;border-radius:20px;border:1px solid var(--panel-border);background:transparent;color:var(--text-dim);cursor:pointer;white-space:nowrap;font-family:var(--font);transition:all 0.2s;min-height:32px}
.prop-tab-btn.active{background:rgba(0,212,255,0.15);border-color:rgba(0,212,255,0.4);color:var(--accent)}
.prop-label{min-width:32px;font-size:10px}
.prop-input{font-size:12px}
.panel-section.desktop-only{display:none}
#nodegraph{border-radius:0;-webkit-overflow-scrolling:touch}
.tb-spacer,.topbar-desktop-only{display:none}
.mobile-only{display:flex!important}
#viewcube{width:55px;height:55px;top:4px;right:4px}
.gizmo-mode-indicator{top:4px;left:4px}
.gm-btn{padding:4px 10px;font-size:11px;min-height:28px}
.vp-btn{font-size:10px;padding:4px 8px}
#btn-focus{bottom:32px}
#btn-solo{bottom:4px}
.view-label{bottom:4px;left:4px;font-size:9px}
.ng-node{min-width:130px}
.ng-node-header span{font-size:10px}
.ng-node-field{font-size:9px}
#tool-tooltip{max-width:180px}
/* Start screen mobile */
#startscreen .logo-big{font-size:32px;letter-spacing:2px}
#startscreen .subtitle{font-size:11px;letter-spacing:3px;margin-bottom:28px}
#startscreen .start-input{width:min(280px,85vw);font-size:14px;padding:10px 16px}
.start-btns{flex-wrap:wrap;justify-content:center}
.start-btn{padding:10px 22px;font-size:13px}
/* Effect menu on mobile */
.context-menu{max-height:60vh;max-width:min(280px,90vw)}
/* Mobile tab bar - all tabs sit side-by-side at bottom */
.mobile-tab-bar{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:200;pointer-events:none;padding:0 8px}
.panel-tab.tab-right,.panel-tab.tab-left,.panel-tab.tab-bottom{position:static;writing-mode:horizontal-tb;text-orientation:initial;
transform:none;border-radius:8px 8px 0 0;border-bottom:none;padding:6px 14px;pointer-events:auto;--tab-slide-x:0;--tab-slide-y:20px}
/* Mobile dividers: all horizontal */
.divider-v{width:auto!important;height:8px!important;cursor:ns-resize!important}
}
/* Landscape on mobile: auto-collapse right panel + node graph */
@media(max-width:768px) and (max-height:500px){
:root{--m-right-h:0px;--m-bottom-h:0px}
}
/* Small phones */
@media(max-width:380px){
#topbar .logo span,#topbar .logo{font-size:11px}
#topbar .project-name{width:60px;min-width:50px}
.tool-btn{width:38px;height:38px;min-width:38px}
#startscreen .logo-big{font-size:26px}
.start-btn{padding:10px 18px;font-size:12px}
}
@media(min-width:769px){
.prop-tabs{display:none}
.panel-section{display:block!important}
}

/* ━━━ LANDSCAPE SUGGESTION (dismissible) ━━━ */
.landscape-hint {
  position:fixed; top:50%; left:50%; transform:translate(-50%,-50%); z-index:10000;
  background:#1a1a1e; border:1px solid #d76b2b; border-radius:10px;
  padding:12px 20px; display:none; align-items:center; gap:12px;
  color:#e0e0e6; font-family:Nunito,sans-serif; font-size:12px;
  box-shadow:0 4px 24px rgba(0,0,0,0.5); max-width:90vw; animation:hintSlideUp 0.3s ease;
}
@keyframes hintSlideUp { from{opacity:0;transform:translate(-50%,-50%) scale(0.95)} to{opacity:1;transform:translate(-50%,-50%) scale(1)} }
.landscape-hint svg { width:32px; height:32px; flex-shrink:0; color:#d76b2b; animation:rotateHint 2s ease-in-out infinite; }
@keyframes rotateHint { 0%,100%{transform:rotate(0deg)} 50%{transform:rotate(90deg)} }
.landscape-hint .hint-text { flex:1; }
.landscape-hint .hint-text strong { color:#d76b2b; font-weight:700; }
.landscape-hint .hint-dismiss {
  background:#d76b2b; color:#fff; border:none; border-radius:5px;
  padding:4px 12px; font-size:11px; font-weight:600; cursor:pointer; flex-shrink:0;
  font-family:Nunito,sans-serif;
}
.landscape-hint .hint-dismiss:hover { filter:brightness(1.15); }
@media (max-width:768px) and (orientation:portrait) {
  .landscape-hint.show { display:flex; }
}